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41.
Renske E. Kuijpers L. Andries van der Ark Marcel A. Croon 《The British journal of mathematical and statistical psychology》2013,66(3):503-520
We discuss the statistical testing of three relevant hypotheses involving Cronbach's alpha: one where alpha equals a particular criterion; a second testing the equality of two alpha coefficients for independent samples; and a third testing the equality of two alpha coefficients for dependent samples. For each of these hypotheses, various statistical tests have been proposed. Over the years, these tests have depended on progressively fewer assumptions. We propose a new approach to testing the three hypotheses that relies on even fewer assumptions, is especially suited for discrete item scores, and can be applied easily to tests containing large numbers of items. The new approach uses marginal modelling. We compared the Type I error rate and the power of the marginal modelling approach to several of the available tests in a simulation study using realistic conditions. We found that the marginal modelling approach had the most accurate Type I error rates, whereas the power was similar across the statistical tests. 相似文献
42.
Marcel V.J. Veenman Lieneke Kerseboom Cornelie Imthorn 《Anxiety, stress, and coping》2013,26(4):391-412
Abstract This paper focuses on the role of metacognition in test anxiety. In two experiments, the metacognitive skillfulness of high vs. low test-anxious secondary school students was contrasted. Low test-anxious subjects exhibited a superior metacognitive skillfulness during math performance relative to high test-anxious subjects. Furthermore, differences in metacognitive skillfulness were performance related. In order to unravel causality in the relation between metacognition and test anxiety, two types of test-anxious students may be distinguished analogous to Naveh-Benjamin (1991). Type-1 students would lack metacognitive skills (availability deficiency), through which they experience failure and develop test anxiety. Type-2 students would experience task irrelevant thoughts, which causes cognitive interference with available metacognitive skills (production deficiency). Results of Study 1 reveal that metacognitive cueing may represent an adequate method for the identification of both types. Due to time-constraints, metacognitive cueing in Study 2 failed to do so. 相似文献
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Gerrit Antonides Peter C. Verhoef Marcel van Aalst 《Journal of Consumer Psychology》2002,12(3):193-202
We varied telephone waiting times for a commercial service in 2 different experiments. In the 1st experiment, the telephone rate was either 0 or fixed at Dfl 1 (approximately $0.40) per minute. Consumer perceptions of waiting times could be described best by a psychophysical power function. Furthermore, wait evaluations were mainly influenced by the difference between the consumers’ acceptable and perceived waiting times. The negative effect of perceived waiting time on wait evaluations was increased by the monetary costs of waiting. In the 2nd experiment, the waiting times were filled in different ways: with music, queuing information, and information about expected waiting time. Information about the expected waiting time significantly reduced the overestimation of waiting time, although it increased the negative effect of perceived waiting time on wait evaluations. 相似文献
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Lisette M. A. Gusdorf Annemiek Karreman Marcel A. G. van Aken Maja Deković Cathy van Tuijl 《The British journal of developmental psychology》2011,29(3):612-634
The first aim of the present study was to examine the structure of effortful control. The second aim was to determine whether components of effortful control relate to conduct problems and hyperactivity. Effortful control was measured in 3‐year‐old children (N= 89) with an observational measure, the effortful control battery (ECB), and a parent report, the Children's Behaviour Questionnaire (CBQ). Principal component analysis showed that the ECB measures five components, assessing two higher‐order constructs, which can be labelled as Self‐Control and Attention/Motor Control. The five scales of the CBQ appeared to measure one construct – a more general measure of effortful control. The components and constructs of the ECB as well as the scales of the CBQ were differently related to conduct problems and hyperactivity. Conduct problems were most strongly predicted by observed Delay of Gratification and parent‐reported Inhibitory Control, whereas Hyperactivity was most strongly predicted by observed Delay of Gratification, and the higher‐order construct Attention/Motor Control, as well as parent‐reported Attentional Focusing and Inhibitory Control. It is important to keep in mind that effortful control is composed of heterogeneous components, all having their own unique values. 相似文献
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Miguel Ángel Cano Yessenia Castro Marcel A. de Dios Seth J. Schwartz Elma I. Lorenzo-Blanco Angelica M. Roncancio 《Anxiety, stress, and coping》2016,29(6):699-707
Background and Objectives: Emerging adulthood is often marked with elevated symptoms of anxiety and depression. Hispanic emerging adults may face cultural stressors such as ethnic discrimination that further increase levels of anxiety and depression symptoms. The study aims were to examine if (a) self-esteem mediated effects of ethnic discrimination on symptoms of anxiety and depression, and (b) if gender moderated the indirect effects of discrimination. Design: The study design was cross-sectional self-report. Method: Two moderated mediation models were tested, with 1084 Hispanic emerging adults (ages 18–25) enrolled in institutions of post-secondary in the United States. Results: Results indicated that (a) higher ethnic discrimination was associated with higher anxiety symptoms (β?=?.05, p?=?.04), higher depression symptoms (β?=?.06, p?=?.02), and lower self-esteem (β?=??.30, p?.001); (b) self-esteem mediated the associations of ethnic discrimination with anxiety and depression symptoms; and (c) gender moderated the indirect effects of discrimination, whereby self-esteem was a stronger mediator among men than women. Each moderated mediation model explained 26% of variability in symptoms of anxiety and depression, respectively. Conclusions: Findings suggest that the mediating effects of self-esteem linking ethnic discrimination with symptoms of anxiety and depression vary between genders. 相似文献
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Lydia van Leersum-Bekebrede Ronelle Sonnenberg Jos de Kock Marcel Barnard 《International Journal of Children's Spirituality》2019,24(2):166-182
How children participate in worship practices is largely determined by adults. Adults set the stage; they shape the physical environment and determine the subject matter. Adults design the format for children’s participation in various forms of worship and the roles adults perform influence the interactions with children. Many different intentions inform these design choices and roles: Intentions revolving around faith, liturgy, community, and experience. The way adults shape worship with children points to the significance of spirituality. When adults perform directing roles, children’s spirituality can find a point of reference in stories and traditions while adults themselves gain from the process of translation this involves. When adults facilitate exploration, this nourishes both children’s and adults’ spirituality. Finally, when adults and children participate in worship practices together, it may contribute to a sense of community in which faith can be lived and shared. 相似文献